package com.larry.mr.index;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;

import java.io.IOException;

/**
 * @author larry
 * @Title: map-reduce
 * @Package com.larry.mr.index
 * @Description: TODO
 * @date 2022/5/1718:50
 */
public class OneIndexReducer extends Reducer<Text, IntWritable,Text,IntWritable> {

    int sum = 0;
    IntWritable v = new IntWritable();

    @Override
    protected void reduce(Text key, Iterable<IntWritable> values, Context context) throws IOException, InterruptedException {

        for (IntWritable value : values) {
            sum += value.get();
        }

        v.set(sum);

        context.write(key,v);
    }
}